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Assembly Class

Defines an Assembly, which is a reusable, versionable, and self-describing building block of a common language runtime application.

Namespace: System.Reflection
Assembly: mscorlib (in mscorlib.dll)

'Declaration
<SerializableAttribute> _
<ClassInterfaceAttribute(ClassInterfaceType.None)> _
<ComVisibleAttribute(True)> _
Public Class Assembly
	Implements _Assembly, IEvidenceFactory, ICustomAttributeProvider, ISerializable
'Usage
Dim instance As Assembly

/** @attribute SerializableAttribute() */ 
/** @attribute ClassInterfaceAttribute(ClassInterfaceType.None) */ 
/** @attribute ComVisibleAttribute(true) */ 
public class Assembly implements _Assembly, IEvidenceFactory, 
	ICustomAttributeProvider, ISerializable
SerializableAttribute 
ClassInterfaceAttribute(ClassInterfaceType.None) 
ComVisibleAttribute(true) 
public class Assembly implements _Assembly, IEvidenceFactory, 
	ICustomAttributeProvider, ISerializable

Assemblies provide the infrastructure that allows the runtime to fully understand the contents of an application and to enforce the versioning and dependency rules defined by the application. These concepts are crucial for solving the versioning problem and for simplifying the deployment of runtime applications.

The following code example lists the method signatures for each method in an assembly.

' LoadInvoke loads MyAssembly.dll and lists the method
' information for each method. After compiling this class,
' run LoadInvoke.exe with the DisplayName for the assembly,
' as shown here:
' LoadInvoke MyAssembly
Imports System
Imports System.Reflection
Imports System.Security.Permissions

Public Class LoadInvoke

    <PermissionSetAttribute(SecurityAction.Demand, Name:="FullTrust")> _
    Public Shared Sub Main(ByVal args() As String)
        Dim a As [Assembly] = [Assembly].Load(args(0))
        Dim mytypes As Type() = a.GetTypes()
        Dim flags As BindingFlags = BindingFlags.NonPublic Or BindingFlags.Public Or BindingFlags.Static Or _
            BindingFlags.Instance Or BindingFlags.DeclaredOnly

        Dim t As Type
        For Each t In mytypes
            Dim mi As MethodInfo() = t.GetMethods(flags)
            Dim obj As [Object] = Activator.CreateInstance(t)

            Dim m As MethodInfo
            For Each m In mi
                ' Instead of invoking the methods,
                ' it's safer to initially just list them.
                Console.WriteLine(m)
            Next m
        Next t
    End Sub 
End Class 

' Use this class with the LoadInvoke program.
' Compile this class using vbc /t:library MyAssembly.vb
' to obtain MyAssembly.dll.
Imports System
Imports Microsoft.VisualBasic

Public Class MyAssembly
    Public Sub MyMethod1()
        Console.WriteLine("Invoking MyAssembly.MyMethod1")
    End Sub 'MyMethod1
End Class 'MyAssembly

This type is safe for multithreaded operations.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0
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